Improvement in shutter-hinge and knob



gnant l @time defies JOHN W. TRIPP, OF

GALLIPOLIS, OHIO.

Letters Patent No. 85,7 7 2, dated .Tamm/ry 12, 1869.

IMPROVEMENT IN SHUTTER-HING-E ND KNOB.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern:

vBe it known that I, JOHN W. TRIPP, of Gallipolis, in the county ofGallia, and State of Ohio, haveinvented a new and improvedlShutter-Hinge; and I do hereby declare that the following is a full,clear, and exact description of the construction and operation of thesame, reference being had to the accompanying drawings, making a part ofthis specification, in which- Figure 1 is a side View of the hinge whenopen, the knob being shown in section, as indicated by the line :r1-x offig. 2.

Figure 2 is a top view; v

Figure 3 is a view in detail of escutcheon-plate, showing radialgrooves.

'Figure 4 is a view of knob, showing the spring.

Figure 5 is a section of escutcheon-plate, as indicated by-liue x-x ofiig. 3.

Like letters in the figures of the drawings indicate like parts.

My invention relates to the knob or handle for opening and closing theshutter, and consists in theconstruction of the escutcheon-plate oftheknob with a suitable nv inber of radial grooves or recesses, and in thearrangementof a thumb-spring in the knob, so that by pressing the springback out of the groove, the plate being screwed fast to the frame, andturning the knob, the shutter will be-opened, and held by letting thespring slip back into the proper groove.

The advautageof this arrangement is, the person need use but one hand inoperating the knob and spring, While iu'others both hands are requiredto operate and fasten the knob for the purpose as aforesaid.

To enable any one -skilled in the art to make and use my invention, Iwill proceedV to describe its construction and operation.

A represents a left-handed hinge, which will be attached. to theWindow-frame and shutter in the ordinary way.

B is alever or rod, having its bearing in a box, a,

on the back ofthe hinge, and will be arranged to pass through the frame,near the outer side thereof.

On the end of the rod or lever is a pinion, C, meshing with the wheel D.

This wheel is cast separate from thel hinge, and rests on the projectionb thereof, and has a square slot or hole in the centre of it, throughwhich slot or hole and the projection is inserted the pivot c, the pivotbeing made square next to the shoulder of the projection (Z, to titsnugly the square hole of the wheel, which, when operated upon by thepinion through the knob, will cause the blind or shutter to open orclose, as may be desired. rlhe shutter is sustained by the shoulders ofthe pivot, which shoulders rest and turn upon the projection b. I

E is the escutcheon-plate, and e are the radial grooves or recesses,which incline from the centre to the periphery of the plate.

F is the spring, which is It into the knob to about the thickness of thespring, and fastened at the end by a screw.

The escutcheon-plate is placed on the rod or lever, and screwed fast tothe facings of the frame. The knob is then slipped on the rod againstthe plate, with the spring in the groove thereof. It isthenproperlyfastened to the rod. By pressing the spring back out of thegroove'with the thumb, and turning the knob, the shutter will be opened,and held by the spring being let into the requisite groove.

Having thus fully described my invention,

lVhat I claim therein as new, and desire to secure by Letters Patent,is.-

'lhe arrangement of the spring F, in combination with the radial groovese of the escutcheon-plate, substantiallyiu the manner and for thepurpose as herein shown and set forth.

As evidence that I claim the foregoing, I have hereunto set my hand, inthe presence of two witnesses.

JOHN W. TRIPP.

Witnesses:

H. D. PERRINE, GILBERT B. TowLns.

